Multiple members of the Mars family and the Walton family are featured on the list, indicating just how dynastic wealth is in the US. Meanwhile, women like MacKenzie Bezos and Julia Koch are making their first appearance at the top of the rankings.

Here are the 15 richest women in the US. They are ranked in ascending order of wealth and their net worths are estimates as of October 2, 2019.

The 15 richest women in America, ranked slides

The 15 richest women in America, ranked slides

15. Nancy Walton Laurie, a Walmart heiress, is worth $6.7 billion.

Walton Laurie is the daughter of Bud Walton, who co-founded Walmart with his brother, Sam Walton. After her father’s death in 1995, she inherited half of his stake in the company. The other half went to her sister, who is also on this list.

AP

14. Diane Hendricks is the richest self-made woman in America and has a net worth of $7 billion.

T13. Marijke Mars is the fourth Mars sister who has Snickers candy bars to thank for a $7.4 billion net worth.

Marijke, another Mars sister, also serves on the company’s board of directors. The family has historically been known for being exceedingly private, though in recent years, they have started speaking out and making some media appearances.

9. Ann Walton Kroenke has a net worth of $7.5 billion.

Walton Kroenke is the daughter of Bud Walton, who co-founded Walmart with his brother, Sam Walton. After her father’s death in 1995, she inherited half of his stake in the company. The other half went to her sister, who is also on this list.

IAN WALTON/Reuters

8. Christy Walton married into Walmart's Walton family and is now worth $8.5 billion.